Envelope



C. E. PIERCE.

ENVELOPE.

APPLICATION FILED FEB. 7, 1919. 1,402,650. v Pat t d an, 3, 1922. I 2 SHEETS-SHEET I.

gwuawtoz q/Qit flooQ/o U I I I I v 1 I C. E. PIERCE.

ENVELOPE. rAPPL-LCATION FILED FEB. 7, 1919.

1,402,650. Patented a -3,1922.

" v I 2SHEETSSHEET 2.

1Z1 erc Specification orteftersrateia.

; [Patented Janis, i922.

AppIiation filefllebruaryfl wmi, iSeria1-No..275,592.

citizen of the :United States, l'esidillgfl Tacoma, in the county of Pierce jand State of Washington, have invented new and .use-

. ful "Improvements. in. Envelopes of i which thefollowing is a specification.

. eThis invention-relates to new and useful);

"extreme ends; of; the end flaps. and their exatensionsare. also to be glued together at their; outer ends as shown. 7. k

.i =.;Ilhe.; top flap 4' is provided with the I small pal object OfzthG'IIlVGIItlOILiSjIO provide improvements in envelopes and the "princi proved means forholding the envelope-in closedfcondition. 1 I 1 Another object ofthe'invention is to pro- .1 vide a device of this character. which is simpleand durable in construction, reliable and efiicient in operation and one which can be manufactured and placed upon the market at a minimum cost. a The invention also consists in certain other features of construction and in the combination and arrangement of the several parts, to be hereinafter fully described,

. illustrated in the accompanying drawings and specifically pointed out in the appended claims. I

In describing my invention in detail, reference will be had to the. accompanying drawings wherein like characters denote like or corresponding parts throughout the several views, and in which a Figure 1 1s a view of the blank from whichthe envelope is made.

Figure 2 shows the envelope in partly closed position.

Figure 3 shows the envelope with the top flap open.

Figure 4 shows the envelope closed.

Figure 5 is a sectional View of one of the rivets. v

As shown in these views the envelope consists of the front 1, the bottom flap 2, the end flaps 3, and the top flap 4. The end flaps are made of rectangular form with the side extension 3, said side extensions having their inner ends flaring, as shown. A crease is formed at the junction of the extensions with the end flap so that said extensions may be folded upon the end flap after the end flap is folded over upon the front. These end flaps and their extensions are perforated and the perforations are so located that they will register with each other when in folded condition. p

The end flap 2 is provided with a small their extensions.

fiapfil on each 'oflits inclined sides andwith apaircof holes 2"" which are soilocated that they will register with theholes-inthe end -flaps 2' j are adapted to fold over andbe stuck, to the lowermost; extension flaps. The

flaps A',;each of-gwhich is located on one of thethree sides of said top flap. In the adjoining ends of these flaps 4' are formed perforations which register with each other as shown and when the top flap is folded over into closed position'these perforations will register with the perforations before described. x y

In forming the envelopethe end flaps with their extensions are folded over. The extensions are folded upon the outer side of each end flap as shown in Figure 2 and their ends glued together. Then the small flaps 2 are folded over upon the bottom flap and secured thereto by the adhesive. The adhesive carried bythe outer faces of these fiaps 2 is moistened and. then said bottom flap is folded over upon the end flaps and One member 5 of a snap button 6 is thenplaced through each set of perforations. The other member 7 of each button being placed under the small flaps 4 of the top flap, the opening in said member registering with the perforations in said flap 4! so that when the top flap is folded over the member 7 will engage the member-'5 and by pressing upon the two members said members will be sprung together and thus hold the envelope in closed position. Before folding the upper flap the adhesive carried by the flaps 4 is moistened so that said flaps will stick to the lower flaps. In this way the envelope is held in closed position by the adhesive and the snap buttons. The envelope is of great strength due to the reinforcement of the flap by the extensions and small flaps. g It is thought from the foregoing description that the advantages and novel features of my-invention will be readily apparent.

I desire it to be understood that I may make such changes in the construction and fall within the scope of the appended claims.

Having described my invention what I claim and desire to secure by Letters-Pat Atom flaps, the bottom flap having extensions ent is: a v 1; An envelope comprising end flaps and top andbottom' flaps, said bottom fiap hav- "ing small flaps at its end edges which are turned over and have adhesive on their outer faces, the topflaphaving small turned over flaps at its ends and'at its top edge, the outer faces of which are coated with adhesive, extensions formed on the sides of the end flaps and adapted to be folded over up'onthe outer face of said end flaps anduponwhieh the small flaps on the bottom 'fiap aresecured, a male part of a fastener carried by each endflap and passing through the bottom-flap and apair of female parts carried by the -overlapping ends of the small flaps of the top flap and adapted to engage the male parts when the envelope is-closed. 2. An envelope comprising a body, end

flaps thereon having auxiliary "extensions projecting from their sides and foldable over the outer face thereof, adhesive for securing the extensions in folded position on the outer face of the end flaps, top and hoton its end edges provided withadhesive on inner and outer sides thereof, said latter extensions being foldable and secured to the inner side of the bottom flaps, flap extensions on the end and upper edges of the top flap, said extensions havingvadhesive onthe innerand outer surfaces thereof and adapted to overlap each other, a fastening'device passing through the overlapped portions of said flap extensions,-and co-acting fastening devices passing through the end flaps and their extensions, theadhesive on the outer faces of the extensions on the top and bottom flaps adapting-the same to'be secured to the end flapsas and for the purpose described. .f I

In testimony whereof I aflix m si nature.

CLAUDE IE CE. e 

